PFD Operation
SkyView HDX Pilot’s User Guide – Revision B 4-11
The reaction of the Autopilot to changing the Altitude BUG depends upon:
• The state of the AP’s Pitch axis, and
• The AP’s armed mode of operation, and
• The current state of the aircraft.
See the Autopilot Operation section later in this guide for more information about
how the Autopilot uses the Altitude BUG.
To set the Altitude (ALT) BUG:
1. Enter the Knob Function Menu.
2. Rotate the knob to highlight (ALT).
3. Push the knob to close the menu (this is optional; the menu will close after
approximately 5 seconds). This step assigns that knob to ALT BUG.
(ALT) will now display just above that knob. The Altitude BUG setting on the PFD will be
outlined to signal that it is selected. Turn the knob to adjust the Altitude BUG. Note that while
the Altitude BUG is changing, its display window lights up in cyan to draw your attention to it.
If your panel has the optional SV-KNOB-PANEL Knob Panel installed, simply rotate
the SV-KNOB-PANEL’s ALT knob to adjust the ALT BUG.
To quickly sync the Altitude BUG with the current altitude, press and hold the ALT knob (½
second click).
If your panel has the optional SV-KNOB-PANEL Knob Panel installed, simply push
and hold the ALT knob (½ second click) to sync the Altitude BUG with the current
altitude.
After the Altitude BUG is synchronized an “ALT SYNC” message will appear above the knob.
Altitude Alerter
SkyView HDX can be configured to audibly alert as the aircraft changes altitude in relation to
the Altitude BUG. When the Altitude BUG is active, audio out is configured, and the altitude
alerter is configured, an audio alert of “APPROACHING ALTITUDE” is spoken as the aircraft flies
within a user-selectable distance of the setting of the Altitude BUG. Similarly, an audio alert of
“LEAVING ALTITUDE” is spoken as the aircraft flies away from the setting of the Altitude BUG by
more than a user-selectable distance. The altitude thresholds that trigger the two above alerts
are individually configurable/ The altitude alerter function is not dependent on the state of the
Autopilot (engaged, vs not engaged). See the SkyView Classic / SE / HDX System Installation
Guide for details on how to configure the altitude alerter.
Minimum Descent Altitude (MDA) BUG
The Minimum Descent Altitude (MDA) BUG allows you to set a bug to alert when approaching a
set altitude. This is typically used during approaches to remain aware of approach minimums.
This bug is separate from the altitude bug, which is used to control the autopilot.
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